All categories

2 years ago

Help me pls thank you

Mathematics

1 answer:

Marianna [84]2 years ago

7 0

Answer:

More than half the students scored 81 or better on the test

There were 12 students who scored 80 on the test

The same number of students scored between 81 and 90 on the test as scored between 61 and 80.

Step-by-step explanation: Please think this through, I don't know if I'm correct. It is either all or one of these

You might be interested in

In triangle $ABC,$ point $D$ is on $\overline{AC}$ such that $AD = 3CD = 12$. If $\angle ABC = \angle BDA = 90^\circ$, then what

Neporo4naja [7]

Answer:

$BD=4\sqrt{3}\ units$

Step-by-step explanation:

we know that

$AD=12\ units$

$3CD=12$ ----> $CD=4\ units$

see the attached figure to better understand the problem

Triangles ABD and BCD are similar by AA Similarity Theorem

Remember that

If two figures are similar, then the ratio of its corresponding sides is proportional

$\frac{BD}{AD}=\frac{CD}{BD}$

substitute the given values

$\frac{BD}{12}=\frac{4}{BD}$

$BD^2=48$

$BD=\sqrt{48}\ units$

simplify

$BD=4\sqrt{3}\ units$

8 0

2 years ago

Hey yall this question is for the edge students, my adhd is getting the best of me so I have to ask. when you do a cumulative ex

Brrunno [24]

I’m not sure, but don’t worry it’ll be okay we can always talk and be friends

4 0

3 years ago

Read 2 more answers

How can you be sure that 9.9 ÷ 1,000 = 0.0099?

Nastasia [14]

Answer:

When dividing by 1000, move the decimal point three places to the left (the last one)

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

A company makes gift boxes in different sizes following the pattern shown below. What is the volume of the fourth gift box to th

AVprozaik [17]

The volume of the fourth box is of 410.1 cubic inches.

---------------------

The volume of a rectangular prism is given by the base area multiplied by the height, that is:

$V = A_bh$

---------------------

For the first three boxes, the height is constant at 9 inches.
At the base, the edge length is multiplied by 1.5 each time, as $\frac{4.5}{3} = \frac{3}{2} = 1.5$ , thus, for the fourth box, the edge length, in inches, will be of $4.5 \times 1.5 = 6.75$